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lithium

[lith-ee-uh m] /ˈlɪθ i əm/
noun
1.
Chemistry. a soft, silver-white metallic element, the lightest of all metals, occurring combined in certain minerals. Symbol: Li; atomic weight: 6.939; atomic number: 3; specific gravity: 0.53 at 20°C.
2.
Pharmacology. the substance in its carbonate or citrate form used in the treatment or prophylaxis of bipolar disorder or mania.
Origin
1810-1820
1810-20; < Neo-Latin; see lith-, -ium
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for lithium
  • Energizer has industry-leading lithium battery technology for powering up the high-tech devices that consumers use every day.
  • These same researchers have gotten viruses to do other creative tasks for them, including building a lithium-ion battery.
  • Helium and some lithium were initially formed from what was available after the big bang.
  • The choline nicotine lithium connection is somehow involved in the addiction.
  • lithium-ion batteries have two electrodes immersed in an electrically conductive solution, called an electrolyte.
  • Tesla's vehicles use standard lithium-ion battery cells.
  • As far as batteries are concerned, the raw-material question is where does the lithium come from.
  • Then a salty solution, commonly containing lithium bromide, absorbs the refrigerant vapours.
  • It has developed lithium-ion batteries that are unusually cheap and easy to make.
  • Their expensive lithium-ion battery packs will be leased.
British Dictionary definitions for lithium

lithium

/ˈlɪθɪəm/
noun
1.
a soft silvery element of the alkali metal series: the lightest known metal, used as an alloy hardener, as a reducing agent, and in batteries. Symbol: Li; atomic no: 3; atomic wt: 6.941; valency: 1; relative density: 0.534; melting pt: 180.6°C; boiling pt: 1342°C
Word Origin
C19: New Latin, from litho- + -ium
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for lithium
n.

silver-white metallic element, 1818, with element ending -ium + lithia, Modern Latin name given by Swedish chemist Jöns Jacob Berzelius (1779-1848) to the earth from which it was extracted, from Greek lithos "stone" (see litho-). So called from its mineral origin and to distinguish it from two previously known alkalis of vegetable origin.

Online Etymology Dictionary, © 2010 Douglas Harper
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lithium in Medicine

lithium lith·i·um (lĭth'ē-əm)
n.
Symbol Li
A soft, highly reactive metallic element. Atomic number 3; atomic weight 6.941; melting point 180°C; boiling point 1,342°C; specific gravity 0.534; valence 1.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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lithium in Science
lithium
  (lĭth'ē-əm)   
Symbol Li
A soft, silvery metallic element of the alkali group that occurs in small amounts in some minerals. It is the lightest of all metals and is highly reactive. Lithium is used to make alloys, batteries, glass for large telescopes, and ceramics. Atomic number 3; atomic weight 6.941; melting point 179°C; boiling point 1,317°C; specific gravity 0.534; valence 1. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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